/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:07:35,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:07:35,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:07:35,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:07:35,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:07:35,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:07:35,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:07:35,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:07:35,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:07:35,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:07:35,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:07:35,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:07:35,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:07:35,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:07:35,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:07:35,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:07:35,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:07:35,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:07:35,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:07:35,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:07:35,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:07:35,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:07:35,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:07:35,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:07:35,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:07:35,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:07:35,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:07:35,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:07:35,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:07:35,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:07:35,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:07:35,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:07:35,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:07:35,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:07:35,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:07:35,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:07:35,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:07:35,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:07:35,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:07:35,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:07:35,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:07:35,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:07:35,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:07:35,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:07:35,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:07:35,731 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:07:35,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:07:35,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:07:35,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:07:35,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:07:35,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:07:35,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:07:35,734 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:07:35,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:07:35,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:07:35,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:07:35,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:07:35,735 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:07:35,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:07:35,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:07:35,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:07:35,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:07:35,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:07:35,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:07:35,736 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:07:36,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:07:36,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:07:36,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:07:36,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:07:36,192 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:07:36,193 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-09-04 22:07:36,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b97ab7b8/2f728860d96d4a91901dab25bd217bee/FLAG30f388d05 [2020-09-04 22:07:36,900 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:07:36,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-09-04 22:07:36,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b97ab7b8/2f728860d96d4a91901dab25bd217bee/FLAG30f388d05 [2020-09-04 22:07:37,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b97ab7b8/2f728860d96d4a91901dab25bd217bee [2020-09-04 22:07:37,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:07:37,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:07:37,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:07:37,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:07:37,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:07:37,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3178309e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37, skipping insertion in model container [2020-09-04 22:07:37,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:07:37,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:07:37,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:07:37,803 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:07:37,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:07:37,917 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:07:37,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37 WrapperNode [2020-09-04 22:07:37,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:07:37,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:07:37,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:07:37,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:07:37,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... [2020-09-04 22:07:37,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:07:37,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:07:37,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:07:37,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:07:37,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:07:38,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:07:38,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:07:38,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:07:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 22:07:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 22:07:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 22:07:38,069 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 22:07:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 22:07:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 22:07:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 22:07:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 22:07:38,070 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 22:07:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 22:07:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 22:07:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 22:07:38,071 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 22:07:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 22:07:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 22:07:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 22:07:38,072 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 22:07:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 22:07:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 22:07:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 22:07:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 22:07:38,073 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 22:07:38,074 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 22:07:38,075 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 22:07:38,076 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 22:07:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 22:07:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 22:07:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-04 22:07:38,080 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 22:07:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 22:07:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 22:07:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 22:07:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 22:07:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 22:07:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 22:07:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 22:07:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 22:07:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 22:07:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 22:07:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:07:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 22:07:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:07:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:07:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:07:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:07:38,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:07:38,619 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-04 22:07:38,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:07:38 BoogieIcfgContainer [2020-09-04 22:07:38,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:07:38,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:07:38,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:07:38,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:07:38,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:07:37" (1/3) ... [2020-09-04 22:07:38,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4f8e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:07:38, skipping insertion in model container [2020-09-04 22:07:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:07:37" (2/3) ... [2020-09-04 22:07:38,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4f8e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:07:38, skipping insertion in model container [2020-09-04 22:07:38,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:07:38" (3/3) ... [2020-09-04 22:07:38,637 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2020-09-04 22:07:38,649 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:07:38,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-04 22:07:38,682 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-04 22:07:38,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:07:38,708 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:07:38,708 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:07:38,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:07:38,708 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:07:38,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:07:38,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:07:38,709 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:07:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-09-04 22:07:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 22:07:38,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:38,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:38,744 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash -976698803, now seen corresponding path program 1 times [2020-09-04 22:07:38,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:38,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769041471] [2020-09-04 22:07:38,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:07:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:07:39,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769041471] [2020-09-04 22:07:39,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:07:39,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 22:07:39,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717205082] [2020-09-04 22:07:39,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 22:07:39,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:07:39,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 22:07:39,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 22:07:39,050 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2020-09-04 22:07:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:07:39,318 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2020-09-04 22:07:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 22:07:39,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-04 22:07:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:07:39,334 INFO L225 Difference]: With dead ends: 173 [2020-09-04 22:07:39,334 INFO L226 Difference]: Without dead ends: 74 [2020-09-04 22:07:39,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 22:07:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-04 22:07:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-04 22:07:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-04 22:07:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2020-09-04 22:07:39,396 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 20 [2020-09-04 22:07:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:07:39,397 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2020-09-04 22:07:39,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 22:07:39,397 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2020-09-04 22:07:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-04 22:07:39,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:39,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:39,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:07:39,399 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:39,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1430822134, now seen corresponding path program 1 times [2020-09-04 22:07:39,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:39,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631770323] [2020-09-04 22:07:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:07:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:07:39,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631770323] [2020-09-04 22:07:39,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:07:39,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 22:07:39,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880653158] [2020-09-04 22:07:39,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 22:07:39,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:07:39,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 22:07:39,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 22:07:39,676 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 10 states. [2020-09-04 22:07:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:07:40,139 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2020-09-04 22:07:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 22:07:40,140 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-09-04 22:07:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:07:40,142 INFO L225 Difference]: With dead ends: 149 [2020-09-04 22:07:40,143 INFO L226 Difference]: Without dead ends: 147 [2020-09-04 22:07:40,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-04 22:07:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-04 22:07:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 82. [2020-09-04 22:07:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-04 22:07:40,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-04 22:07:40,167 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 22 [2020-09-04 22:07:40,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:07:40,168 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-04 22:07:40,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 22:07:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-04 22:07:40,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 22:07:40,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:40,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:40,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 22:07:40,170 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:40,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:40,170 INFO L82 PathProgramCache]: Analyzing trace with hash 340604940, now seen corresponding path program 1 times [2020-09-04 22:07:40,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:40,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305989837] [2020-09-04 22:07:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:07:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:07:40,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305989837] [2020-09-04 22:07:40,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:07:40,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 22:07:40,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583062791] [2020-09-04 22:07:40,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 22:07:40,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:07:40,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 22:07:40,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 22:07:40,318 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 7 states. [2020-09-04 22:07:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:07:40,632 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2020-09-04 22:07:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 22:07:40,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-09-04 22:07:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:07:40,634 INFO L225 Difference]: With dead ends: 118 [2020-09-04 22:07:40,635 INFO L226 Difference]: Without dead ends: 116 [2020-09-04 22:07:40,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-04 22:07:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-04 22:07:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2020-09-04 22:07:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-04 22:07:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-09-04 22:07:40,651 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 28 [2020-09-04 22:07:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:07:40,652 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-09-04 22:07:40,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 22:07:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-09-04 22:07:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-04 22:07:40,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:40,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:40,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 22:07:40,654 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:40,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:40,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1933129776, now seen corresponding path program 1 times [2020-09-04 22:07:40,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:40,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708465636] [2020-09-04 22:07:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:40,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:07:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:07:40,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708465636] [2020-09-04 22:07:40,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:07:40,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 22:07:40,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127006169] [2020-09-04 22:07:40,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 22:07:40,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:07:40,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 22:07:40,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 22:07:40,751 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 4 states. [2020-09-04 22:07:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:07:40,877 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2020-09-04 22:07:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 22:07:40,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-04 22:07:40,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:07:40,879 INFO L225 Difference]: With dead ends: 195 [2020-09-04 22:07:40,880 INFO L226 Difference]: Without dead ends: 136 [2020-09-04 22:07:40,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 22:07:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-04 22:07:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 97. [2020-09-04 22:07:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-04 22:07:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-04 22:07:40,900 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 33 [2020-09-04 22:07:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:07:40,900 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-04 22:07:40,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 22:07:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-04 22:07:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 22:07:40,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:40,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:40,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 22:07:40,903 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:40,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:40,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1127481847, now seen corresponding path program 1 times [2020-09-04 22:07:40,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:40,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766027299] [2020-09-04 22:07:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:07:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:07:41,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766027299] [2020-09-04 22:07:41,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:07:41,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 22:07:41,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621308664] [2020-09-04 22:07:41,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 22:07:41,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:07:41,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 22:07:41,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-04 22:07:41,283 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 14 states. [2020-09-04 22:07:42,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:07:42,180 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2020-09-04 22:07:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 22:07:42,181 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-09-04 22:07:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:07:42,182 INFO L225 Difference]: With dead ends: 190 [2020-09-04 22:07:42,182 INFO L226 Difference]: Without dead ends: 160 [2020-09-04 22:07:42,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2020-09-04 22:07:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-04 22:07:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 105. [2020-09-04 22:07:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-04 22:07:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-09-04 22:07:42,220 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 37 [2020-09-04 22:07:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:07:42,222 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-09-04 22:07:42,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 22:07:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-09-04 22:07:42,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 22:07:42,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:07:42,227 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:07:42,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 22:07:42,228 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:07:42,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:07:42,228 INFO L82 PathProgramCache]: Analyzing trace with hash 821991267, now seen corresponding path program 1 times [2020-09-04 22:07:42,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:07:42,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312283424] [2020-09-04 22:07:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:07:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:07:42,320 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive [2020-09-04 22:07:42,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 22:07:42,340 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-04 22:07:42,351 INFO L168 Benchmark]: Toolchain (without parser) took 5167.50 ms. Allocated memory was 146.8 MB in the beginning and 283.1 MB in the end (delta: 136.3 MB). Free memory was 102.7 MB in the beginning and 236.0 MB in the end (delta: -133.4 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:07:42,352 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:07:42,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.05 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 171.9 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:07:42,360 INFO L168 Benchmark]: Boogie Preprocessor took 73.13 ms. Allocated memory is still 204.5 MB. Free memory was 171.9 MB in the beginning and 168.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-04 22:07:42,362 INFO L168 Benchmark]: RCFGBuilder took 634.53 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 119.7 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2020-09-04 22:07:42,363 INFO L168 Benchmark]: TraceAbstraction took 3717.58 ms. Allocated memory was 204.5 MB in the beginning and 283.1 MB in the end (delta: 78.6 MB). Free memory was 119.0 MB in the beginning and 236.0 MB in the end (delta: -117.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:07:42,376 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.05 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 171.9 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.13 ms. Allocated memory is still 204.5 MB. Free memory was 171.9 MB in the beginning and 168.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 634.53 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 119.7 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3717.58 ms. Allocated memory was 204.5 MB in the beginning and 283.1 MB in the end (delta: 78.6 MB). Free memory was 119.0 MB in the beginning and 236.0 MB in the end (delta: -117.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...